HomeMy WebLinkAboutEngineered Plan - 2014SYSTEM PROFILE
„Yr (NOT TO SCALE)
PROVIDE MIN. 20" DIAM. WATERTIGHT
ACCESS COVERS TO WITHIN 6" OF FIN. GRADE 2" PEASTONE OR GEOTEXTILE
7, FILTER FABRIC OVER STONE
121.0' MINIMUM J5' OF COVER OVER PRECAST _
NOTE: 2- MIN. WALL
PRECASTIH-10
THICKNESS REQUIRED
RISERS (TYP.) I 4" OSCH40 PVC
2'm
PIP/ES LEVEL 1ST 2'
*19.0' 10" 14"
(PROP.) 18.44 TEE TEE 1819 1 :: • i 17.62'
.°°°°°°°°°°°°
1500 GAL H-10 GAS BAFFLE °�����°�00° 0.92'
SEPTIC TANK18 �' 17.83'
"'•'°0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o`c WATER TEST D'BOX FOR LEVELNESS
• o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0;0;0, 0 0 0 0 0
°O°°o°°o°°°°°°°°°°p°°°p°°°p�
n o 0 o r r_n_n_n.o 0
6" CRUSHED STONE OR MECHANICAL
COMPACTION. (15.221 [21)
(_L.5% SLOPE) ( 1 % SLOPE) (_1_7. SLOPE)
FOUNDATION- 16' SEPTIC TANK 19' D' BOX 23'
*THE INSTALLER SHALL VERIFY THE LOCATIONS OF ALL
UTILITIES AND ALL BUILDING SEWER OUTLETS AND ELEVATIONS
PRIOR TO INSTALLING ANY PORTION OF SEPTIC SYSTEM
*(RE-ROUTE REQUIRED)
VARIANCES REQUESTED:
UNDER MAX. FEASIBLE COMPLIANCE 15.405:
(1a): REDUCTION IN SETBACK, SAS TO LOT LINE (10' TO 6')
(1b): REDUCTION IN SETBACK, SAS TO FOUNDATION (20' TO 18')
UNDER TOWN OF YARMOUTH HEALTH REGULATIONS:
(3.7): REDUCTION
S SEPTIC TANKS TO BVWS(100'TO BTO 75')
TO 66')
TEST HOLE LOGS
ENGINEER: DANIEL E. GONSALVES, SE #13587
WITNESS: AMY VON HONE, RS
DATE: 6/18/14
PERC. RATE _ < 2 MIN/INCH
CLASS I SOILS
ELEV.
O„ 4 20.5'
FILL
54"
16'
B
LS
65" 1OYR 5/6 15.1'
PERC C
M/CS
1OYR 7/8
150" 1 18'
GROUNDWATER ENCOUNTERED 0 150"
i4-352
l
ALL SYSTEM COMPONENTS SHALL BE
MARKED WITH MAGNETIC TAPE OR
COMPARABLE MEANS FOR FUTURE LOCATION.
t
i PROVIDE INSPECTION PORTS TO
WITHIN 3" OF FINISH GRADE
2% SLOPE REQUIRED OVER SYSTEM
18.0'
16.7'
USE (11) HIGH CAPACITY H-20 INFILTRATOR UNITS
(EACH UNIT = 6.25 x 2.83 x .,0.92' INVERT HEIGHT)
(NO STONE PROPOSED)
i 5
G -W ADJ. DATA:
LEACHING WELL: MIW 29
FACILITY ZONE: B
ADJ: 3.7' GROUNDWATER ADJUSTED ELEV. 11.7'
1
x 38 L,
BENCH MARK - CTR OF CATCH o
BASIN. ELEVATION = 19.7 I�®�\�c�`�, 5' REMOVAL OF UNSUITABLE SOIL REQUIRED
\5$ r� AROUND PERIMETER OF LEACHING FACILITY,
x 1 9 v � __x 20.49 DOWN TO SUITABLE SOIL LAYER. REPLACE
SOLID BASIN \
X 20.40 WITH CLEAN MED. SAND, TO MEET
x
19.98 �` \G� �x'�-O.18 SPECIFICATIONS OF 310 CMR 15.255(3)
®� � 9 X17/" 20
\ p i.
® � ,x. .x � -- 20.5
�®/
x(9.62
T
.01 1
<0.29 1�� 00 �p -
�r �.4
20.6 1 ? o ±
0.68 20.72 / / 118
x-20.92 20.92 \'
/
2/ x 17.26
0.8 21.OB, / 8 1 .9 x 17 CA9
21.
F4/T\�g \21.77
6p 21.39 19_1 '
■ 21.46�
/ 21.85 1. 6
1 22.
q G OCL .22�,
rn 9I / 0 •�� ON• i�f•�r
wiffil
CA
EXISTING LEACH TRENCH
2�
We
�
9 �1
1g Gov
18 1� 16 3 129
1�D a 11.17
x/14/21N
/ 11.28
Scale: 1"= 20'
0 10 20 30 40 50 FEET
c
do
�. 2 i r lam.
1 V
x 14.24
_ 14.73 *PLUMBING TO BE RE-ROUTED TO
FRONT OF BUILDING. INSTALLER TC
x15. CONFIRM FEASIBILITY PRIOR TO
INSTALLING ANY PORTION OF SEPI
1 3 SYSTEM
I
co ,
I
,I
15.39
t
N
1 � �
1N 1.0 1.07
4 Pio i
11.22
11 11.32
M
11
NOTES
1. DATUM IS ASSUMED
2. MUNICIPAL WATER IS EXISTING
3. MINIMUM PIPE PITCH TO BE 1/8- PER FOOT.
4. DESIGN LOADING FOR ALL PROPOSED PRECAST
UNITS TO BE AASHO H-10
5. PIPE JOINTS TO BE MADE WATERTIGHT.
6. CONSTRUCTION DETAILS TO BE IN ACCORDANCE
WITH 310 CMR 15.000 (TITLE 5.)
7. THIS PLAN IS FOR PROPOSED WORK ONLY AND
NOT TO BE USED FOR LOT LINE STAKING OR ANY
OTHER PURPOSE.
8. PIPE FOR SEPTIC SYSTEM TO SCH. 40-4" PVC.
9. COMPONENTS NOT TO BE BACKFILLED OR
CONCEALED WITHOUT INSPECTION BY BOARD OF
HEALTH AND PERMISSION OBTAINED FROM BOARD
OF HEALTH.
10. CONTRACTOR SHALL BE RESPONSIBLE FOR
CALLING DIGSAFE (1-888-344-7233) AND MAP VERIFYING THE LOCATION OF ALL UNDERGROUND & LOCUS MAP
OVERHEAD UTILITIES PRIOR TO COMMENCEMENT OF
WORK. NOT TO SCALE
11. ANY UNSUITABLE MATERIAL ENCOUNTERED
SHALL BE REMOVED 5' BENEATH AND AROUND THE ASSESSORS MAP 67 PARCEL 236
PROPOSED LEACHING FACILITY.
NOTE: TWO BEDROOM DEED RESTRICTION REQUIRED
12. EXISTING LEACHING FACILITY SHALL BE PUMPED
AND REMOVED OR PUMPED AND FILLED WITH CLEAN
SAND.
.Permit valid for REPAIR OF SEPTIC SN'S'FE:M
ONLY, due to State and Local septic variances.
Board of Ilealth review and approval is required for
any future additions/renovations/alterations to
sewage facilities and/or structures/dwelling.
Yarmouth Health I)chartment
APPROVE1) l
Nerve - Date
llav
RENEWED
FE8 2 0 2015
HEALTH DPT.
DATE
DANIEL A. OJALA, P.E., P.L.S.
SYSTEM DESIGN:
GARBAGE DISPOSER IS NOT ALLOWED
DESIGN FLOW: 2 BEDROOMS ® 110 GPD = 220 GPD
USE A 220 GPD DESIGN FLOW
SEPTIC TANK: 220 GPD (2) = 440
USE 1500 GAL. SEPTIC TANK
LEACHING:
4.73 SF/LF x 6.25' LENGTH = 29.56 SF PER
HIGH CAPACITY INFILTRATOR UNIT
220 GPD/0.74 GPD/SF .= 297.3 SF LEACHING
REQ'D
297.3 SF/29.56 SF/UNIT = 10.1 UNITS
THEREFORE, USE GRAVELLESS SYSTEM OF (11)
H-20 HIGH CAPACITY UNITS IN FIELD
CONFIGURATION AS SHOWN
11 UNITS x 29.5 SF = 324.5 SF > 297.3 SF
324.5 SF (0.74) = 240 GPD (OK)
MA
APPROVED DATE BOARD OF HEALTH
TITLE 5 SITE PLAN!
OF
67 SWIFT BROOK ROAD
SOUTH YARMOUTH
PREPARED FOR
VERA O'HARA
DECEMBER 23, 2014
off 508-362-4541
fax 508-362-9880
I downcope.com
down cjjpe eineering, inc.
civil engineers
land surveyors
939 Main Street ( Rte 6A)
YARMOUTHPORT MA 02675